Like others have said, hard to pick just one. There have been many over the last 50 years. started out with a Rem 742 in 30-06. That worked well for several years. Then I wanted one that was more accurate at longer ranges. Shot a Sako 75 and Steyr Mannlicher both in 308 for a while. They worked great for hunting 200-300 yds. Then I got bit by the magnum bug. I bought a Rem 700 in 7mm mag and a Win. model 70 in 300 mag. a 280 AI as well. All great guns and calibers. I killed my share of deer with each of them. I have been retired now for 5 years and I don't hunt the Magnums any more. I stepped down to a Tikka T3x lite in 270. I also enjoy shooting my 260, 7mm 08, and 6.5 Creed. All Tikka's and Sako's. What I have learned over the years is Choose a good bullet and put it in the right place. Dead is dead with any of these calibers. To sum it up, I cant pick just one favorite. Variety is the spice of life. I'm just happy to be in the woods hunting with any of them.